Bearing RNAFW203224 JNS -

: NACHI PZS Series Hydraulic Piston Pumps Origin Japan NACHI PZE Series Hydraulic Piston Pumps Origin Japan Komastu Gear Pump Origin Japan

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NACHI PZS Series Hydraulic Piston Pumps Origin Japan

NACHI PZE Series Hydraulic Piston Pumps Origin Japan

Komastu Gear Pump Origin Japan

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Bearing RNAFW203224 JNS image

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Bearing RNAFW203224 JNS Characteristics

Bearing number:71956 ACD/P4A
Size (mm):280x380x46
Bore Diameter (mm):280
Outer Diameter (mm):380
Width (mm):46
d:280 mm
D:380 mm
B:46 mm
C:46 mm
d1:311.8 mm
d2:311.8 mm
r1 min.:2,1 mm
r2 min.:2,1 mm
r3 min.:1,1 mm
r4 min.:1,1 mm
D1:348.2 mm
D2:– mm
da min.:291 mm
Da max.:369 mm
db min:291 mm
ra max.:2 mm
rb max.:1 mm
dh:319,7 mm
Db max:374 mm
Weight:13 Kg
Basic dynamic load rating (C):276 kN
Basic static load rating (C0):430 kN
(Grease) Lubrication Speed:2 600 r/min
(Oil) Lubrication Speed:4 000 r/min
Fatigue load limit (Pu):10
r1,2 min.:2.1 mm
r3,4 min.:1.1 mm
a:100.2 mm
db min.:291 mm
Db max.:374 mm
dn:319.7 mm
Basic dynamic load rating C:276 kN
Basic static load rating C0:430 kN
Fatigue load limit Pu:10 kN
Attainable speed for grease lubrication:2600 r/min
Attainable speed for oil-air lubrication:4000 r/min
Ball diameter Dw:30.162 mm
Number of balls z:31
Reference grease quantity Gref:159 cm³
Preload class A GA:1700 N
Static axial stiffness, preload class A:659 N/µm
Preload class B GB:3400 N
Static axial stiffness, preload class B:867 N/µm
Preload class C GC:6800 N
Static axial stiffness, preload class C:1154 N/µm
Preload class D GD:13600 N
Static axial stiffness, preload class D:1572 N/µm
Calculation factor f:1.27
Calculation factor f1:0.98
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.08
Calculation factor f2D:1.14
Calculation factor fHC:1
Calculation factor e:0.68
Calculation factor (single, tandem) Y2:0.87
Calculation factor (single, tandem) Y0:0.38
Calculation factor (single, tandem) X2:0.41
Calculation factor (back-to-back, face-to-face) Y1:0.92
Calculation factor (back-to-back, face-to-face) Y2:1.41
Calculation factor (back-to-back, face-to-face) Y0:0.76
Calculation factor (back-to-back, face-to-face) X2:0.67
Mass bearing:12.9 kg

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